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of 154
pro vyhledávání: '"Khatibzadeh, Hadi"'
Autor:
Khatibzadeh, Hadi, Pouladi, Hadi
Publikováno v:
Analysis mathematica (2021)
In this paper, we prove a mean ergodic theorem for nonexpansive mappings in Hadamard (nonpositive curvature metric) spaces, which extends the Baillon nonlinear ergodic theorem. The main result shows that the sequence given by the Karcher means of ite
Externí odkaz:
http://arxiv.org/abs/2005.08251
Autor:
Khatibzadeh, Hadi, Pouladi, Hadi
Publikováno v:
Results in Mathematics volume 75 (2020) 1-18
In the present paper, after recalling the Karcher mean in Hadamard spaces, we study the relation between convergence, almost convergence and mean convergence (respect to the defined mean) of a sequence in Hadamard spaces. These results extend Tauberi
Externí odkaz:
http://arxiv.org/abs/1906.06988
Autor:
Khatibzadeh, Hadi, Pouladi, Hadi
Publikováno v:
Semigroup Forum 101 (2020), no. 3, 716-733
The main purpose of this paper is to prove the mean ergodic theorem for nonexpansive mappings and semigroups in locally compact Hadamard spaces, including finite dimensional Hadamard manifolds. The main tool for proving ergodic convergence is the alm
Externí odkaz:
http://arxiv.org/abs/1903.00629
Akademický článek
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Autor:
Hashemi, Mehrnaz Sadat1 hashemi.mehrnaz@znu.ac.ir, Khatibzadeh, Hadi1 hkhatibzadeh@znu.ac.ir
Publikováno v:
Bulletin of the Belgian Mathematical Society - Simon Stevin. Jul2023, Vol. 30 Issue 1, p79-90. 12p.
Autor:
Khatibzadeh, Hadi, Mohebbi, Vahid
In this paper, we study $\Delta$- convergence of iterations for a sequence of strongly quasi-nonexpansive mappings as well as the strong convergence of the Halpern type regularization of them in Hadamard spaces. Then, we give some their applications
Externí odkaz:
http://arxiv.org/abs/1611.02979
Autor:
Khatibzadeh, Hadi, Mohebbi, Vahid
In this paper, the proximal point algorithm for quasi-convex minimization problem in nonpositive curvature metric spaces is studied. We prove $\Delta$-convergence of the generated sequence to a critical point (which is defined in the text) of an obje
Externí odkaz:
http://arxiv.org/abs/1611.01830
Autor:
Khatibzadeh, Hadi, Mohebbi, Vahid
We study equilibrium problems in Hadamard spaces, which extend variational inequalities and many other problems in nonlinear analysis. In this paper, first we study the existence of solutions of equilibrium problems associated with pseudo-monotone bi
Externí odkaz:
http://arxiv.org/abs/1611.01829
Autor:
Khatibzadeh Hadi, Pouladi Hadi
Publikováno v:
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, Vol 29, Iss 1, Pp 111-125 (2021)
In this paper, we consider the orbits of an affine nonexpansive mapping in Hadamard (nonpositive curvature metric) spaces and prove an ergodic theorem for the inductive mean, which extends the von Neumann linear ergodic theorem. The main result shows
Externí odkaz:
https://doaj.org/article/a06fd4808f104d4cbdeb507fa856fa59
Publikováno v:
Numerical Functional Analysis & Optimization. 2022, Vol. 43 Issue 7, p860-875. 16p.